Preliminary Examination
Remove the thermometer from the packaging and examine it
carefully to make sure that no damage has occurred during
shipping. Notify your nearest Hanna Customer Service Center
if damage is observed.
Each HI151 thermometer is delivered in a cardboard box and
is supplied with:
• CR2032 3V Lithium batteries
• Quality certificate
• Instruction manual
Note: Save all packing material until you are sure that
the thermometer works correctly. Any damaged or
defective item must be returned in its original packing
material with the supplied accessories.
General Description & Intended Use
HI151 Checktemp
®
4 is the perfect portable, high-accuracy
thermometer for home and professional kitchens. The sharp,
stainless steel, fold-out probe is ideal when testing fresh,
cooked and semi-frozen food. The sensing tip allows the user
to accurately measure the temperature of thin food or in the
thickest part of the sample.
The thermometer has a waterproof and compact casing and
is factory calibrated. The calibration is verified every time the
thermometer is turned ON.
The thermometer features a motion sensor which eliminates
the need of closing and reopening the probe when the meter
enters power save.
HI151 Checktemp
®
4 measures temperature in both °C and in °F.
Six color-coded thermometers are available to meet the food-
hygiene and Hazard Analysis Critical Control Point (HACCP)
regulations.
Code Purpose Color
HI151 dairy products white
HI151-1 raw meat red
HI151-2 raw fish blue
HI151-3 cooked meat yellow
HI151-4 salad and fruits green
HI151-5 vegetables brown
Dear Customer,
Thank you for choosing a Hanna Instruments product.
Please read this instruction manual carefully before using
the thermometer. For more information about Hanna
Instruments and our products, visit www.hannainst.com
or e-mail us at [email protected].
For technical support, contact your local Hanna
Instruments Office or e-mail us at [email protected].
Specifications
Range -50.0 to 300 °C / -58.0 to 572 °F
Resolution
0.1 °C (-50.0 to 199.9 °C)
1 °C (200 to 300 °C)
0.1 °F (-58.0 to 199.9 °F)
1 °F (200 to 572 °F)
Accuracy
± 0.4 °C (-50.0 to -30.0 °C)
± 0.2 °C (-30.0 to 170.0 °C)
± 0.4 °C (170.0 to 199.9 °C)
± 1 °C (200 to 300 °C) ± 1 digit
±0.8 °F (-58.0 to -22.0 °F)
±0.4 °F (-22.0 to 199.9 °F)
±1 °F (200 to 392 °F)
±2 °F (392 to 572 °F) ± 1 digit
Probe
stainless steel probe with penetration tip;
103 x 3 mm (dia.) (4.06 x 0.12’’ dia.)
Battery CR2032 3V x 2 pcs.
Battery Life approx. 4000 hours of use
Power save
1 min, 2 min (default), 8 min, 60 min.
or OFF
Environment -20.0 to 50.0 ºC (-4.0 to 122.0 ºF)
Dimensions 165 x 45 x 24 mm (6.5 x 1.8 x 0.9”)
Weight 85 g (3.0 oz)
Case ingress
protection
rating
IP67, floating case
Operational Guide
• Fold out the probe to turn the thermometer ON.
• Every time the thermometer is switched ON the LCD will
display “CAL” then “-0-”, indicating that the factory
calibration has been verified and the thermometer is ready
for measurement.
• If the battery level is too low, the “BAt” message appears
on the LCD. Replace the batteries as indicated in the battery
replacement section, and if the “BAt” warning message
is still displayed, contact your local Hanna Instruments
Office.
• For improved accuracy it is recommended to immerse the
tip of the temperature probe at least 2 cm (0.79”). Do not
exceed the maximum immersion level of 7 cm (2.76”).
The temperature value will be displayed on the LCD, allow
the reading to stabilize for a few seconds before recording
the value.
• The default power save time is 2 minutes. If the
thermometer remains in stable position for the set time,
it will enter power save mode. To exit power save mode,
move or shake the thermometer.
• Fold the probe in to turn the thermometer OFF.
Temperature unitLow battery indicator
LCD
Meter Setup
To enter the Setup Menu, remove the battery cover and press
the setup button in the battery compartment.
Setup button
• Short press the setup button to switch between “°C” or
“°F”. Long press the setup button to save the temperature
unit and continue to the sleep mode time slot setting.
• Short press the setup button to switch between the power
save time settings “d01”, “d02”, “d08”, “d60” (1, 2, 8,
60 minutes) or “d--” (disabled). Long press the setup
button to save the selected time slot and return to the
measurement screen.
max. 160°
max. immersion level
SN: XXXXXXXX
HI151
HI151
Checktemp
®
4
INSTRUCTION MANUAL
Battery Replacement
The thermometer features a low battery indicator. When the
battery is running low, the battery indicator will blink.
Replace the batteries when the battery indicator is blinking or
when Checktemp® 4 does not switch ON.
1. Remove the battery compartment cover.
2. Use a small flathead screwdriver to remove the batteries.
3. Insert the new batteries (CR2032 3V) observing the
indicated polarity.
4. Replace the battery compartment cover.
Note: Batteries should only be replaced in a safe area using
the battery type specified in this instruction manual.
Old batteries should be disposed in accordance with
local regulations.
Care & Maintenance
To ensure accurate measurements rinse the thermometer with
water and dry off before taking any measurements.
The thermometer is not designed to remain in a food while in
the oven or on the grill.
To clean your thermometer, gently wash the probe with
hot water and soap, and never submerge it in water for a
long time as it can damage the thermometer. This product
can be placed in a dishwasher on a cold cycle only. If
necessary the thermometer can be sanitized with alcohol
or diluted chlorine bleach; and rinse thoroughly with
water before using.
Troubleshooting
If “CAL” and “Err” are displayed, an internal error has
occurred. The thermometer may still be operational but it
is not guaranteed to operate within the published accuracy
specifications.
If “---” is displayed, the connection between the measuring
sensor and thermometer body is broken.
If “ErF” or “ErT” is displayed, an error in the calibration has
occurred.
If “ErA” is displayed, the motion sensor has malfunctioned.
Turn the thermometer OFF and ON to reset. If the error persists,
please contact your local Hanna Instruments Office.
Certification
All Hanna Instruments conform
to the CE European Directives.
Disposal of Electrical & Electronic Equipment. The product
should not be treated as household waste. Instead hand it over
to the appropriate collection point for the recycling of electrical
and electronic equipment which will conserve natural resources.
Disposal of waste batteries. This product
contains batteries, do not dispose of them with
other household waste. Hand them over to the
appropriate collection point for recycling.
Ensuring proper product and battery disposal prevents
potential negative consequences for the environment and
human health. For more information, contact your city, your
local household waste disposal service, the place of purchase
or go to www.hannainst.com.
Recommendations for Users
Before using Hanna Instruments products, make sure that they
are entirely suitable for your specific application and for the
environment in which they are used. Any variation introduced by
the user to the supplied equipment may degrade the thermometer’s
performance. For yours and the thermometer’s safety do not use or
store the thermometer in hazardous environments.
Warranty
HI151 Checktemp
®
4 is guaranteed for a period of one year after
date of purchase against defects in workmanship and materials
when used for their intended purpose and maintained according
to instructions. This warranty is limited to repair or replacement
free of charge. Damage due to accidents, misuse, tampering
or lack of prescribed maintenance is not covered. If service is
required, contact your local Hanna Instruments Office. If under
warranty, report the model number, date of purchase, serial
number and the nature of problem. If the repair is not covered by
the warranty, you will be notified of the charges incurred. If the
instrument is to be returned to Hanna Instruments, first obtain a
Returned Goods Authorization number from the Technical Service
department and then send it with shipping costs prepaid. When
shipping any instrument, make sure it is properly packed for
complete protection.
IST151 05/19
Hanna Instruments reserves the right to modify
the design, construction or appearance of its products
without advance notice.
All rights are reserved. Reproduction in whole or in part is
prohibited without the written consent of the copyright
owner, Hanna Instruments Inc., Woonsocket, Rhode Island,
02895, USA.
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